/******************************************************************************
 * Spine Runtimes Software License
 * Version 2.3
 * 
 * Copyright (c) 2013-2015, Esoteric Software
 * All rights reserved.
 * 
 * You are granted a perpetual, non-exclusive, non-sublicensable and
 * non-transferable license to use, install, execute and perform the Spine
 * Runtimes Software (the "Software") and derivative works solely for personal
 * or internal use. Without the written permission of Esoteric Software (see
 * Section 2 of the Spine Software License Agreement), you may not (a) modify,
 * translate, adapt or otherwise create derivative works, improvements of the
 * Software or develop new applications using the Software or (b) remove,
 * delete, alter or obscure any trademarks or any copyright, trademark, patent
 * or other intellectual property or proprietary rights notices on or in the
 * Software, including any copy thereof. Redistributions in binary or source
 * form must include this license and terms.
 * 
 * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

using UnityEngine;
using System.Collections;
using Spine;


public class AtlasRegionAttacher : MonoBehaviour {

	[System.Serializable]
	public class SlotRegionPair {
		[SpineSlot]
		public string slot;

		[SpineAtlasRegion]
		public string region;
	}

	public AtlasAsset atlasAsset;
	public SlotRegionPair[] attachments;

	Atlas atlas;

	void Awake () {
		GetComponent<SkeletonRenderer>().OnReset += Apply;
	}


	void Apply (SkeletonRenderer skeletonRenderer) {
		atlas = atlasAsset.GetAtlas();

		AtlasAttachmentLoader loader = new AtlasAttachmentLoader(atlas);

		float scaleMultiplier = skeletonRenderer.skeletonDataAsset.scale;

		var enumerator = attachments.GetEnumerator();
		while (enumerator.MoveNext()) {
			var entry = (SlotRegionPair)enumerator.Current;
			var regionAttachment = loader.NewRegionAttachment(null, entry.region, entry.region);
			regionAttachment.Width = regionAttachment.RegionOriginalWidth * scaleMultiplier;
			regionAttachment.Height = regionAttachment.RegionOriginalHeight * scaleMultiplier;

			regionAttachment.SetColor(new Color(1, 1, 1, 1));
			regionAttachment.UpdateOffset();

			var slot = skeletonRenderer.skeleton.FindSlot(entry.slot);
			slot.Attachment = regionAttachment;
		}
	}
}
